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Sleep Calculator

Plan bedtimes based on sleep cycles so you wake up at the right moment between cycles.

5 cycles (~7.5 hours)
15 minutes

Recommended bedtimes

  • 3 cycles02:15 AM
  • 4 cycles12:45 AM
  • 5 cycles11:15 PM
  • 6 cycles09:45 PM
Selected plan: go to bed at 11:15 PM.
Results are estimates. Individual sleep needs vary.